The population of a town is 64,000. If the annual birth rate is 10.7% and theannual death rate is 3.2%, calculate the population after three years.[Hint: Net growth rate (Birth rate-Death rate)%]5.

The population of a town is 64,000. If the annual birth rate is 10.7%

1.	The population of a town is 64,000. If the annual birth rate is 10.7% and theannual death rate is 3.2%, calculate the population after three years.[Hint: Net growth rate (Birth rate-Death rate)%]5.
Answer» Given: Birth rate=10.7%Death rate=3.2%Formula used:Rate of increase =birth rate-death rateSolution:rate of increase=10.7-3.2=7.5%increase in population In 1st year=(7.5/100)6400=4800at the end of 1st year=64000+4800=68800increase in population In 2nd year=(7.5/100)68800=5160at the end of 2nd year=68800+5160=73960increase in population in 3rd year =(7.5/100)*73960=5547at the end of 3rd year=73960+5547=79507population at the end 3rd year=79507